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The gray zone between the state of good health and the state of is often a small imbalance.

a.

toxic pollution

b.

organic pollution

c.

disease

d.

contamination

e.

synergism

c. disease

Explanation: A state of good health and a state of disease is a gray zone of suboptimal health.

Yep this is right you

See diagram.we use washers to get the area and we will be integrating with respect to xouter radius is the  distance between y = e^x and y = -1    inner radius of washer is the distance between y = 1 and y = -1    the area of one cross-section of a washer is    solid lies between x = 0 and x = 2. the volume is    if you need this expanded, then    the question doesn't say to evaluate, so we're done.